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M

Personal Info

Known For

Acting

Born

August 14, 1950

Died

February 24, 2026 (age 75)

Place of Birth

Los Angeles, California, USA

Also Known As

Maria O'Brian

IMDb

Maria O'Brien

Biography

Maria O'Brien (August 14, 1950 – February 24, 2026) was an American actress and acting coach. She was the daughter of actors Edmond O'Brien and Olga San Juan, and sister of voice actor Brendan O'Brien. She was best known as a character actress, but she also had a recurring role on a few television series, such as Ave 43 and The Life and Times of Eddie Roberts. She was also an acting coach on soap operas, such as Days of Our Lives, Sunset Beach, and Passions.

Matlock Star Maria O’Brien Dies at 75

Video

Known For

The Love Boat
TV

The Love Boat

Rita Almerez

1977

Murder, She Wrote
TV

Murder, She Wrote

Lt. Abbe Esposito

1984

Magnum, P.I.
TV

Magnum, P.I.

Club Manager Applicant

1980

Matlock
TV

Matlock

Juanita Martinez

1986

Beyond Belief: Fact or Fiction
TV

Beyond Belief: Fact or Fiction

Paranormal Investigator (segment "The Chess Game")

1997

Jack & Jill
TV

Jack & Jill

Fortune Teller

1999

Suddenly Susan
TV

Suddenly Susan

Maria

1996

CHiPs
TV

CHiPs

Patti Poncherello

1977

Howard
Film

Howard

Maria (archive footage)

2018

For the People
TV

For the People

Judge

2002

The Incredible Shrinking Woman
Film

The Incredible Shrinking Woman

Neighbor

1981

Smile
Film

Smile

Maria

1975

Protocol
Film

Protocol

Donna

1984

Dead on Arrival
Film

Dead on Arrival

Neighbor

2018

The Choirboys
Film

The Choirboys

Carrier 2's Wife

1977

American Raspberry
Film

American Raspberry

Air Puerto Rico Stewardess

1977

In a Stranger's Hand
Film

In a Stranger's Hand

Paula

1991

In the Best Interest of the Child
Film

In the Best Interest of the Child

Carla

1990

Your Mother Wears Combat Boots
Film

Your Mother Wears Combat Boots

Carla

1989

Shell Game
Film

Shell Game

Lola Ramirez

1975

Filmography

2018FilmHowardas Maria (archive footage)2018FilmDead on Arrivalas Neighbor2002TVFor the Peopleas Judge1999TVJack & Jillas Fortune Teller1997TVBeyond Belief: Fact or Fictionas Paranormal Investigator (segment "The Chess Game")1997FilmGood Luckas Peggy1996TVSuddenly Susanas Maria1992FilmIn Sickness and in Healthas Nancy1991FilmIn a Stranger's Handas Paula1990FilmIn the Best Interest of the Childas Carla1989FilmYour Mother Wears Combat Bootsas Carla1988FilmPromised a Miracle1986TVMatlockas Juanita Martinez1984FilmProtocolas Donna1984TVMurder, She Wroteas Lt. Abbe Esposito1981FilmThe Incredible Shrinking Womanas Neighbor1980TVMagnum, P.I.as Club Manager Applicant1980FilmPSI Factor1977FilmThe Choirboysas Carrier 2's Wife1977TVThe Love Boatas Rita Almerez1977TVCHiPsas Patti Poncherello1977FilmAmerican Raspberryas Air Puerto Rico Stewardess1975FilmSmileas Maria1975FilmShell Gameas Lola Ramirez